کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1401328 | 1501356 | 2016 | 13 صفحه PDF | دانلود رایگان |
• Governing equations are reported for equilibrium swelling of cationic gels.
• The ability of the model to predict observations is confirmed by simulation.
• Relations are established between material constants and composition of a gel.
Governing equations are developed for equilibrium swelling of a cationic polyelectrolyte gel in aqueous solutions with various pH and molar fractions of a monovalent salt. Material constants are determined by fitting observations on several homo- and copolymer gels in two types of tests: when swelling is conducted in water baths with varied pH and a fixed molar fraction of salt, and when experiments are performed in water baths with a fixed pH and varied concentration of salt. Phenomenological relations are suggested for the effect of total volume fraction of monomers in a pre-gel solution, molar fraction of ionic monomers, and molar fraction of cross-linker on adjustable parameters in the model.
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Journal: European Polymer Journal - Volume 79, June 2016, Pages 23–35